I've noticed strange eugenia behaviour for compartment element. If you'll create a diagram from below code, SomeProcess figure will have list Layout in its body, is it correct behaviour? the problem is not solved even if I'll add @compartment(layout="free") for that element.

@gmf.link(source="source", target="target", style="dot", width="2", label="stepValue")
class Reference {
attr String stepValue;
ref Stepable source;
ref Stepable target;
}
I was playing with the code and all started to work correctly with following code: